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Articles by Shahzad Jamaati-e-Somarin
Total Records ( 5 ) for Shahzad Jamaati-e-Somarin
  Manochehr Shiri-e-Janagrad , Ahmad Tobeh , Abazar Abbasi , Shahzad Jamaati-e-Somarin and Saeid Hokmalipour
  To study, the growth of different shoot parts of two potato cultivars under the effects of different levels of N fertilizer, a split-plot experiment was conducted based on Completely Randomized Block Design (CRBD) with four replications in Ardabil agriculture research station in 2007. Cultivars included Agria and Satina and N fertilizer levels included control, 80, 160 and 200 kg N ha-1. Results showed that Agria was significantly superior in all traits except stem length. The effect of N on all traits was significant. As N level increased, auxiliary branch number and plant height increased. The maximum stem and leaf biomass and leaf number was achieved in 160 kg N ha-1 treatment and the highest main stem number was achieved in 80 kg N ha-1 treatment. The yield difference among 80, 160 and 200 kg N ha-1 was insignificant. Over time auxiliary (not main) branch number, plant height, stem dry weight and tuber yield increased. Leaf number and leaf biomass declined after 94 DAP (Days After Planting). Generally, potato is a crop that strongly affected by nitrogen rates. But the effect of nitrogen on aboveground was more violent than tubers. Therefore, a range of 80-160 kg N ha-1 is recommended.
  Shahram Azizi-e-Chakherchaman , Hossein Mostafaei , Askar Yari , Mohammad Hassanzadeh , Shahzad Jamaati-e-Somarin and Reza Easazadeh
  Drought is one of the most important abiotic stresses that limit crop production in arid and semi-arid regions of the world. Lentil (Lens culinaris L.), a valuable legume crop, is produced mainly as rain-fed in Iran. An experiment was conducted to study the relationships between Relative Water Content (RWC), Cell Membrane Stability (CMS) and duration of growth period with grain yield of 11 advanced genotypes, cultivars and a local genotype at the Ardabil research center for agriculture and natural resources, Ardabil, Iran. Experimental design was a Randomized Complete Block Design (RCBD) with three replications under both rain-fed and irrigated conditions. Combined ANOVA analysis procedure showed significant differences among all the evaluated traits. Significant differences between characters revealed that there was high variation between the traits studied. Means for characters under study showed that grain yield, RWC, CMS and duration of growth period decreased in rain-fed conditions, but cell membrane leakage (electrical conductivity) increased. Correlation coefficients showed strongly positive relation between grain yield with RWC (r = + 0.98**), strongly negative and non significant with CMS (r = -0.32ns) and strongly negative relation between grain yield and the days to maturity (r = -0.78**). The results of the experiment also revealed that there were not a strong relation between yield and calculated traits for drought tolerance except RWC. This character therefore, could be effective in evaluation of drought tolerance and identification of high yielding genotypes (ILL 6031, ILL 9893 and ILL 8095).
  Mehran Ochi-e-Ardabili , Mohammad Zaefizadeh , Shahzad Jamaati-e-Somarin , Mohammad Hassanzadeh and Nahid Hazrati
  Genetically variation is of the most important tool in plant breeding, so making and investigating of the variation in genotypes can be a factor of success in selection of favorable traits in crop randomized complete block design with three replications was conducted using the 96 double haploid genotypes of resulted from wheat and corn hybridation with embryo rescue along with the four local controls in Ardabil, Iran, in 2007 and 2008 cropping season. During the season, agricultural and morphological traits as well as yield and yield components were measured. It was cleared that there were significant differences between the genotypes were placed in the first group and low yielding ones placed in the second group, which can be used to attain the more heterosis by hibridation of the genotypes in the both groups. Highly yielding genotypes generally are derived from the corn father lines of CMH81, CMH82 different mother lines.
  Shahzad Jamaati-e-Somarin , Mohammad Hassanzadeh , Fariborz Peyghami and Roghayyeh Zabihi-e-Mahmoodabad
  In order to evaluate the effect of nitrogen rates and plant populations on growth and chlorophyll content of durum wheat Seymare cultivar during the growing season, a factorial experiment based on randomized complete block design with three replications was conducted in the research center for agriculture, Islamic Azad University, Ardabil branch, Ardabil, Iran in 2008-2009 growing season. Factors included nitrogen rates: 0, 60, 120 and 180 kg ha-1 and plant populations: 300, 350 and 400 plant m-2. Date of appearance of some growth stages, growth of the leaves and stems in terms of number and dry weight and also, leaf chlorophyll content during the growing season was recorded. Results showed that with increasing nitrogen application, some aspects such as stem dry weight, number of leaf, stem and tiller along with the leaf chlorophyll content were increased and with increasing plant population per unit area, vegetative growth period and leaf chlorophyll content were decreased, while the reproductive growth period, leaf and stem dry weight and the number of leaf, stem and tiller were increased.
  Nayer Bahavar , Ali Ebadi , Ahmad Tobeh and Shahzad Jamaati-E-Somarin
  This experiment was conducted to determine water use efficiency of chickpea (cv. Arman) under water deficit condition and different mineral N application. The experiment was arranged in growth chamber of Mohaghegh Ardabili University, Ardabil, Iran, in 2007, with three nitrogen levels (25, 50 and 75 kg N ha-1 as urea) and five irrigation regimes (soil water content of 25, 45, 65, 85 and 100% field capacity). The experiment was laid out in randomized complete block design (factorial) experiment with three replications. Results showed that water stress affect Water Use Efficiency (WUE), Relative Water Content (RWC), Leaf Area (LA), leaf number after stress induction, biomass (above ground tissues) and root/shoot ratio (R/S) traits. Application of Mineral nitrogen increased water use efficiency, RWC, leaf area and biomass. Maximum amount of WUE, RWC, biomass and LA obtained from 75 kg N ha-1 under water deficit condition. This experiment revealed that nitrogen fertilizer could reduce many detrimental effects of water stress. These results also suggest that using of nitrogen fertilizer in water deficit conditions (such as dry land farming areas) increase tolerance of plants to stress.
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